Wheeled truck.



G. B.' NORRIS.

WHEELED TRUCK. APPLIoATIoN FILED SEPT. 11. 1909.

Patnted June 7, 1910.

2 SHEETS-SHEET 1.

. which t UNITED srArEs rari; or r GEORGE B; NOBBIS, OF COLUMBUS', OHIO, ASSIGNOIR :T0 THEVJEFFBY MNUFAC- e TUBING COMPANY, A CORPORATION OF OHIO. 'v

'WHEELED TRUCK.

Specification of Letters Patentt `:Partei1.13611-J une 7, 1910.

Application led September 11, 19.09. Serial 1%.'517276.

To all whom 'it may commi:

13e -it known that I, GEORGE B. Norms, a citlzen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Wheeled Trucks, of e following is a specification, ref

erence being had therein to the accompanying drawing.

This invention relates to trucks, and has as its object to provide a truck. onto which and from which a mining machine orother body can be readily loaded or unloaded.

Figure 1 of the drawings is a plan view of a truck embodyingmy invention. Fig. 2

. is a side elevation'of the same, a mining machine being indicated thereon in phantom. Fig'. 3 Vis a side elevationof the truck-with the front end depressed and inposition for unloading or loading a mining machine, the mining 'machine 4being indicated by dotted lines in this ligure also.

It has been customary in using trucks of this kind to depress one end of the truck and consequently to `.raise the axle and wheels at the opposite end ofv the truck from the ground when it has been desired to put the truck in position for loading or unloading a mining machine. When the truck is thus tilted on its front axle as a iiulcrum the rear end is` raised suiiiciently high to occasion serious difficulty in rooms where the coal is found in very thin veins, the rear end of the truck or the mechanism'carried 'by the rear end frequently striking the roof ofthe room. A

A truck built in accordance with my invention is provided with a front supporting construction of such a type that the forward end of the truck may be lowered with A respect tothe front axle and again elevated to position after the mining machine has y been moved into place upon thetruck. The

frame of. the truck comprises the side rails 1 1 and cross bars 2, 3 and 4. To the side bars 1 is bolted a cast iron frame vwhich 1s i provided with bearing boxes 5 for the axles is when the extreme end portionsof the axlev lare in the same horizontal plane with the central -port-ion, the front end of the truck issupported in its elevated horizontal positio'n.` On-the other hand when the central part of. the axle lies in ythe same vertical planewith the axle ends but in a lower hori- `Zontalepl'ane, the forward end of the truck is lowered into contact with the ground or engage with a similar clutch member 12 on the mining machine, the mining machine clutch member being operatively connected with the mining machine motor or engine. At the other end of the train of power transmitting gearing in the housing 11 is the sprocket wheel 13 which is connected by the sprocket chain-14 to the sprocket wheel 15 keyed upon the axle 6. In this manner the power of the mining machine motor is utile, ized to propel the truck bodily along the tracks l()` in the'minc.

Cam blocks 16, having peripheraliy i' g'roovcdl edges 17, are keyed to the axle 8, preferably' at points between the axle boxes. The grooves. 17 are spirally formedwith re spect to the adjacent partof the axle 8, vthe forward end of the groove being at a less radial distance' from the axle than the rear end of the groove. At the forward end 19 ofthe groei-'ed edge 17 of'each of the cam blocks there is fastened one end of a' rope 18 which engages the groovedA edge 17 and passes over the idler pulley 20, loosely sleeved upon the rear axle 6, being attached at its rear end to a hook 21 which is ad'f justably secured by means of a screw threaded engagement to tle cross bar 22. This cross bar is provided at each end with shoes E23 which engage the inner edges-of the side frame bars or rails 1, 1 so as to permithorizontal movement :of the cross bar with respect to thelframe bars, while preventing vertical displacement. The central portion of this cross barl 22 iselevated above the ends which enga ewith the frame bars 1, and is according y in. suchal position Yvertically that ity will be engaged by the afdranc- 'ing end of themining machine as it is moved by the movement. of the mining machine and into position upon the truck. lt will be understood that any one of the well known means can be employed f or moving the mining machine as it is loaded or unloaded; in

'the drawings a rope 2li is secured at one end to the standard 25, which supports the gear housing 11, and at its other end is wound upon a winch. mechanism carried by the mining machine and operated by the mining machine motor or engine. By means of this `rope land winch mechanism the mining machine is enabled to dra-w itself upon the.

truck. To unload the mining machine it is only necessary to secure thevfree end of the rope tosome xed point beyond the other end of thetruek and toput in operation the wincl'i mechanism. A

The operation of the truckis as follows: 'The front end of the truck being in its lowermost position, the mining machine' is -started upon the inclined truck rails 1, and

is moved rearwardly and upwardly until 'the advancing end of the mining machine engages the cross bar 22. At this juncture the ropes 18 are tightened and drawn rearward position when the mining machine has reached t-he point necessary to bring the clutch elementsinto engagement. After the mining machine has been thus placed in position upon the truck the power of the mining machine motor is used to propel the truck 'andmining machine along the mine track to any desired locality.

. When the mining machine is being re moved from the truck the bar 22 is released and .allowsthe axle 8 to rotate downwardly until .the front end of the truck is lowered into'contact with the ground.

What I claim is:

Yl. .The combination of a wheeled mining 4 machine truck, devices upon the truck adapted to incline 1t longitudinally and 'mounted -in position vto b e engaged andV operated by a mining machine as it is moved into position upon the truck irrespective ofthe position of the center of gravity of the mining` machine with respect to the axis about which the truck is inclined.

2. The combination in a triicl ,of a frame and two support-ing axles therefor, wheels on the axles, guides on the frame for receiving an article to be carried vby the truck, the

' frame being tiltable with, respect to the plane common to thetwo axles so as to ineline the said guides to the horizontal, and means adapted to convert the movement of the articlealong the guides on the truck into a tilting movement of the frame, said means opcratnig independently of the position of the center of Gravity of the article.

3. The combination of a wheeled truck: adapted to carry a mining machine, and power transmitting mechanism carried by the truck operable by the movement of the mining machine with respect to the truck for elevating one end of the'truck 'from a relatively low to a horizontal position.

4;. TheA combination of a ,truck frame adapted to carry relatively heavy objects, two axles and wheels thereon for supporting the frame, and power transmitting mechanism controllable by the position of the said object with respect to the truck for inclining the truck frame relatively to the plane common to the saidaxles.

5. The combination of a frame, longitudinally arranged horizontal guides on the frame for receiving a mining machine',` a rear axle and wheels thereon bodily immovably mounted in the frame, and a front axle' v and wheels bodily movably mounted in the frame, and means operable by the moving mining machine for moving the frame with respect to the front axle.

6. A truck comprising a frame, a rear axle'and wheels, va front wheel and an axle therefor journaled in the frame and bent between the wheel and the journal, power transmitting mechanism adapted to be operated by a moving article on the frame for angularly adjusting the axle.

7. A. wheeled truck for transporting heavy i objects having an axle journaled in its frame., a wheel on the axle, the axle being bent between the wheel and journal, means for angularly adjusting the axle, and means for locking said adjusting means, said locking inea-ns being adapted to be operated by .the object transported.

8. A wheeledtruck .for transporting heavy objects having a supporting wheel journaled on a support movable in an arc of a circle with respect to the truck frame, and a draft devicesecured to said support eccentrically to the center of said are, and means for hold,- ing the draft device in varying positions relative to the lframe.

9. ln a tilting truck, the combination with a low horizontal l"track platform, of two pairs of supporting wheels, mechanism for joining one of said pairs of support-ing wheels to said platform, and mechanism for joining the other pair of said wheels to said platform for up and down adjustment of the platform, and means operating said adj Listing mechanism, said operating means being automatically controlled by an article on the truck.

l0. The combination of a wheeled mining machine truck, comprising a platform and two pairs of wheels, the platform being adjustable with respect toxone of the pairs of wheels, with means upon the truck for locking the platform in elevated` position with respect to the said pair of wheels,'said locking means being operated by the mining mach'inl as vit moves into position upon the truc l1. The combination in a tru'clr, ofa plat-l form permitting a lowering of that endA of g5 the platform in position to receive a mining machine, power mechanism Afor moving a mining machine into position upon the "platform, and devices for elevating the platform with respect to the second pair of wheels 20 adapted to be operated by said power mech! anism.

In testimony whereof I aiix my signature, in presence of two witnesses. 4 GEORGE B. NGRRIS.

Witnessesz' f H. B. ALEXANDER,

M. ERLANGER. 

